Alarm



March 12, 1940. 4 T J HlER 2,193,452

ALARM Filed Oct. 3, 1938 INVENTOR ATTORNEY.

Patented Mar. 12, 1940 ALARM Theodore J. Gauthier, Springfield, Mass.Application October 3, 1938, Serial No. 233,054' I 1 Claim.

This invention relates to improvements in an alarm and is directed moreparticularly to the provision of a novel alarm device which isautomatically operated by the movement of a window sash or the like, orby the movement of one window sash relative to another window sash.

The principal object of my invention is the provision of a device whichis sure-and positive in its operation and which is readily associatedwith and detachable from window sashes or the like. The arrangement issuch that an alarm or signal is automaticallyoperated should anuninvited intruder such as a burglar attempt to raise or lower thewindow.

Another object of the invention is the provision of a device of theabove character which is relatively simple and compact'in form and theparts are adaptedto be readily assembled and when assembled to bepositively and securely retained in operative relation.

Still another object of the invention is to provide an improvedconstruction which may be made more economically and with feweroperations, both in the manufacture of the parts as Well as inassembling them, than can prior devices known in the art.

Various other novel features and advantages of the invention willhereinafter be more fully referred to in connection with theaccompanying drawing, wherein:

Fig, l is a side elevational view of the device of the invention shownin association with a window sash;

Fig. 2 is a plan view of the. device shown in Fig. 1;

Fig. 3 is a side elevational view of a modified form of the device ofthe invention association with a window sash;

Fig. d is a partial plan view of the device shown in Fig.3; and

Fig. 5 is aperspective view of a clamping member to be used inconnection with the device of the invention.

shown in Referring now to the drawing in detail, the inthe member 22 isreleased, it moves outwardly so as to permit the operating hammer tostrike the bell. j

It will be appreciated that when the member 22' is held against outwardmovement the bell does not ring. As will now appear, I provide aconstruction whereby the member 22 is normally held against outwardmovement but is released when the window sash with which it isassociated v is either'rais'ed or lowered,'depending upon which 1 fordirectly securing the bell and bracket to g the top of one of thesashes. 1

If desired, however, there may be a clamping member M, such as shown inFig. 5 which has opposite end portions adapted to be secured to thesash. The intermediatepart of the-member 25 is raised or spaced) fromthe sashso that the foot portion 42. ofthe bracket may be receivedthereunder as shown in Fig. l.

An arm member 45 is pivotally secured as at 48 to the 'bell 211 orbracket and it projects outwardlyv from the bell-along a horizontalplane." Positively secured to the outer end of the arm 46 is a yieldableengaging member 5|).

This member 5!! may take various forms but in the form shown, it is madeof rubber. This member is adapted to engage the sash or winclo-W, asshown in Fig. 1,-in such a way that it will move with the window andthereby move arm 46 on its pivot 48.

. A lug 52 extends from the arm 46 and this is adapted to releasablyengage the operating member'28 and hold it in a normal, non-operatingposition. When the arm 46 swings on its pivot 48, it carrieslug 52 out of the position shown in Fig, 2 so that the operating member22 is released. I I

In bells of'the spring operated type, when the operating member is heldin normal position, the spring is held thereby against movement so thatit is'impossible for the bell to ring. By moving the arm upwardly ordownwardly and thereby releasing the opera-ting member, the spring isreleased and the bell rung. p

The device is so positioned with respect to the window that the memberfrictionally en- 55 gages a part of the window such as pane 38. As thelower sash 32 is raised or as the upper sash 34 is lowered, theengagement of memberill with the window causes movement of arm 46 fromits normal position and consequent release of the operating member 22and ringing of the bell.

A modification of this invention is shown in Figs. 3 and 4. According tothis form, the signal consists of an alarm bell, indicated generally byprovided with a spring actuated hammer and an operating member arrangedto be urged inwardly to operate the bell-ringing mechanism.

This bell may likewise be supported by a bracket 62 having a leg part 64on its lower end for reception in a clamp member 66 similar to the partM above described. The other end of the bracket 62 is preferably curvedand an arm lll is pivoted thereto at 69.

A block 72 is attached to the outer end of the arm 1i] and a suction cup14 is preferably threaded onto a threaded connection 16 secured to block72. On the other end of the arm 10 is a lever part 18.

Connecting the outer part of arm 10 and the lower part of bracket 62 isa member 89. This member is slotted at 82 to receive a pin extendingoutwardly from bracket 62 as shown. As arm 18 swings upwardly on itspivot 69, it causes member 85) to move downwardly, the latter beingguided by the pin and slot.

At a midpoint 84 of the connecting arm 80 is pivoted another lever 86.This has an engaging part 88 on other end adapted to overlie theoperating member 9!] of the bell.

The operation of thisform of the device will now be explained.

The suction cup M is positively engaged with the sash or with the windowpane 38 substantially as shown in Fig. 3. As the lower window sash 32 israised, or as the upper window sash 3 5 is lowered, the arm '18 iscaused to swing on its pivot ESQ whereupon the connecting arm 80 isurged downwardly as is the arm 86. This movement causes the engagingpart 88 to press inwardly on the operating member 90 and ring the bell.

It is desired to point out that the parts 50 and M positively engage thewindow so that movement thereof promptly brings about operation of thesignal. It is to be noted too that when the arm 46 has been moved fromthe positionshown in Fig. 2 and the member 22 has moved outwardly, thesaid member 22 remains out until manually pushed back in. That is tosay, the intruder could not stop the ringing of the bell merely byclosing the window because the lug 52 would, upon movement of thebracket toward normal position, engage the side of the operating memberin extended position rather than override it and urge it to its innerposition.

While I have described the invention in great detail and with respect tothe present preferred form thereof, it is not desired to be limitedthereto since many changes and modifications may be made therein withoutdeparting from the spirit and scope of the invention. What it is desiredto claim and secure by Letters Patent of the United States is:

The combination with upper and lower window sashes containing windowsand movable between open and closed positions, of a burglar alarmcomprising, a bell attached to the upper side of the lower sash, anoperating member extending longitudinally outwardly from a side of saidbell and movable outwardly relative to the bell to operate the same, alongitudinally-extending arm member having its inner end pivotallyconnected to a side of said bell which is adjacent said first side ofthe bell so as to be swingable between a normal position and a positionaway therefrom and its outer end in positive engagement with the windowvof the upper sash, said arm member being spaced from said operatingmember and disposed in a longitudinal plane parallel with the operatingmember, and. 2. lug member secured to said arm member so as to bemovable therewith and extending perpendicularly therefrom in thedirection of the operating member, said lug member being in engagementwith said operating member when said arm member is in its said normalposition and out of engagement therewith when said arm member is in saidposition away therefrom, all adapted and arranged whereby when either ofsaid window sashes is moved to its open position, said arm member swingson its pivot away from its normal position so that said lug member ismoved out of engagement with the operating member so that the lattermoves outwardly to operate the bell.

' THEODORE J. GAU'THIER.

